https://checkout.netsuite.com/s.nl?c=655844&n=1&sc=4&logoff=T&ckabandon=&promocode=&promocodeaction=overwrite&gc=clear
  • Current
  • Niner invests as much care and engineering into their alloy frames as they do into their carbon program
  • Carefully tuned alloy frames offer ideal ride feel
  • Airformed and hydroformed tubes offer increased strength and stiffness as well as weight savings.
  • Niner invests as much care and engineering into their alloy frames as they do into their carbon program
  • Carefully tuned alloy frames offer ideal ride feel
  • Airformed and hydroformed tubes offer increased strength and stiffness as well as weight savings.

We at Niner believe that your alloy bike should incorporate all of the same high end features and technologies as any top of the line carbon bike. Where some companies have left their alloy bikes in the past, our lineup reflects the most current alloy shaping technology and specifications.

1. Why shape alloy tubing?
The shape of a tube is as important now as the material it is made from. Shaping has a huge effect on the way stress is distributed across and around a bicycle frame. Controlling the stress distribution enables us to use less material while maintaining or even increasing the frame strength.

All of Niner's alloy frames incorporate shaped tubing. The effect of this upgrade goes much further than appearance. Forming allows us to optimize strength and stiffness in key areas - creating beautifully tuned frames with the precise ride characteristics we seek for every application. In testing, frames incorporating proprietary tube shaping put up stiffness numbers much higher than those with old-style round tubing. Shaped tubing also allows us to incorporate custom solutions not possible in old-style frames, such as integrating the bearings directly into the seat tube of our full suspension frames.



image01

2. What is the difference between mechanical shaping, Airforming and Hydroforming?
The least expensive method for shaping a tube is via mechanical forming. In this process, tube shapes are achieved by manipulating a straight gauge tube using mandrels, dies and tube bending equipment. This approach has limits, particularly when it comes to tube bends and tube butting (wall thickness).

Hydroforming uses special molds and fluid pressure to form metal tubes into predetermined shapes. To do this, a hollow tube is placed into a negative mold of the desired result. Then, high pressure hydraulic fluid is pumped into the aluminum tube, causing it to expand until the tube conforms to the shape of the mold.

Taking things even further, Niner uses a multi stage hydroforming process - first, a straight gauge tube is butted and mechanically formed in preparation for the hydroforming process. Then, using "multi-stage hydroforming" (a series of molds used in sequence), we create complex shapes. Multiple steps take longer but the weight and strength results are worth the extra work.



image01

At the very pinnacle of alloy shaping is air forming. Airforming utilizes super heated air in place of hydraulic fluid to shape the tubing. Where hydroforming is instantaneous, air forming takes 3-5 minutes per tube. This slower process allows for tighter tolerances and even bigger changes from the original round shape of the tube than in hydroforming. This precision means that we can achieve some of the best weight and strength results available in alloy bikes today.



image01

3. Why are some Niner alloy frames airformed and others hydroformed?
Frames with simpler shapes can be hydroformed and still achieve the tolerances we need to create a light, strong bike. Frames with very complex shaping or with tubes that need to interface with bearings or pivot hardware are typically airformed. Airforming allows for much more precise tolerances and more elaborate shapes that can include both bending and twisting. A great example of this level of complexity is the stay bridge on our alloy full suspension frames.

You will find air formed tubes on our Jet 9, RIP 9 and WFO 9 frames. Our Air 9, RLT 9 and EMD 9 frames all utilize hydroformed tubes.

We at Niner believe that your alloy bike should incorporate all of the same high end features and technologies as any top of the line carbon bike. Where some companies have left their alloy bikes in the past, our lineup reflects the most current alloy shaping technology and specifications.

1. Why shape alloy tubing?
The shape of a tube is as important now as the material it is made from. Shaping has a huge effect on the way stress is distributed across and around a bicycle frame. Controlling the stress distribution enables us to use less material while maintaining or even increasing the frame strength.

All of Niner's alloy frames incorporate shaped tubing. The effect of this upgrade goes much further than appearance. Forming allows us to optimize strength and stiffness in key areas - creating beautifully tuned frames with the precise ride characteristics we seek for every application. In testing, frames incorporating proprietary tube shaping put up stiffness numbers much higher than those with old-style round tubing. Shaped tubing also allows us to incorporate custom solutions not possible in old-style frames, such as integrating the bearings directly into the seat tube of our full suspension frames.



image01

2. What is the difference between mechanical shaping, Airforming and Hydroforming?
The least expensive method for shaping a tube is via mechanical forming. In this process, tube shapes are achieved by manipulating a straight gauge tube using mandrels, dies and tube bending equipment. This approach has limits, particularly when it comes to tube bends and tube butting (wall thickness).

Hydroforming uses special molds and fluid pressure to form metal tubes into predetermined shapes. To do this, a hollow tube is placed into a negative mold of the desired result. Then, high pressure hydraulic fluid is pumped into the aluminum tube, causing it to expand until the tube conforms to the shape of the mold.

Taking things even further, Niner uses a multi stage hydroforming process - first, a straight gauge tube is butted and mechanically formed in preparation for the hydroforming process. Then, using "multi-stage hydroforming" (a series of molds used in sequence), we create complex shapes. Multiple steps take longer but the weight and strength results are worth the extra work.



image01

At the very pinnacle of alloy shaping is air forming. Airforming utilizes super heated air in place of hydraulic fluid to shape the tubing. Where hydroforming is instantaneous, air forming takes 3-5 minutes per tube. This slower process allows for tighter tolerances and even bigger changes from the original round shape of the tube than in hydroforming. This precision means that we can achieve some of the best weight and strength results available in alloy bikes today.



image01

3. Why are some Niner alloy frames airformed and others hydroformed?
Frames with simpler shapes can be hydroformed and still achieve the tolerances we need to create a light, strong bike. Frames with very complex shaping or with tubes that need to interface with bearings or pivot hardware are typically airformed. Airforming allows for much more precise tolerances and more elaborate shapes that can include both bending and twisting. A great example of this level of complexity is the stay bridge on our alloy full suspension frames.

You will find air formed tubes on our Jet 9, RIP 9 and WFO 9 frames. Our Air 9, RLT 9 and EMD 9 frames all utilize hydroformed tubes.

 
[Error processing dynamic tag getCurrentAttribute('item','custitem_geometry_description_chinese') : record noninvtpart 5336 not found]